Windmill construction



June 14 1927.

H. M. LOEBER WINDMILL CONSTRUCTION Filed Nov. I5, 1925 3 Shoots-611001; 1

' 1,632,188 June 2 H. M. LOEBER WI NDMILL CONSTRUCTI ON Filed Nov. 15, 1925 s Shoots-Sheet 2 r- 14 June 1927 H. M. LOEBER WINDMILL CONSTRUCTION Filed Nov. 15, 1923 3 Shoots-Shoot 3 Patented June 14, 1927.

UNITED STATES 1,632,188 PATENT OFF/ICE...

HERMAN M. LOEBER, OF BEATRICE, NEBRASKA, ASSIGNOR T DEMPSTEB MILL MANU- FACTURING (10., OF BEATRICE, NEBRASKA, A. CORPORATION OF NEBRASKA.

WINDMHJL CONSTRUCTION.

Application filed November 15, 1923. Serialli'o. 674,849.

My invention relates to windmill construction.

One of the objects of my invention is to improve the construction of self-oiling windmills.

A further object of my invention is to provide an improved back-geared self-oiling I windmill, I A further object of my invention is to provide improved means for oiling the cross head of the windmill.

A further object of my invention is to provide an improved'brake for the wind wheel. I v

Further objects will appear from the description and claims. 1 In the drawings in which an embodiment of my invention is shown- I Figure 1 is a plan view partly in section of the windmill construction;

Fig. 2 is a side elevation partly in section; Fig. 3 is a vertical sectional view; Fig. 4 is an enlarged sectional view of an oil scraper carried by the cross head; Fig. 5 is a fragmentary view showing the oil scraper; Fig. 6 is a section on the line 6-6 of Fig.2;

Fig. 7 is a section on the line 77 of Fig. 2; and 1 Fig. 8 is a section'on the line 8-8 of Fig. 2. i Referring now to the drawings in detail, the construction shown therein comprises a main frame or head 10, on which the wind wheel 11, the vane 12 and the transmission from the wind wheel to the pump rod 13 are mounted, a rotatable tubular stem 14: on which the head 10 .is mounted, and pulhout mechanism 15 for throwing? the mill cutofear. The head 10 isJdesigned to provide a substantial oil reservoir, from which oil is supplied to all of the working parts. i

The transmission from the wind wheel 11 to the pump rod 13 comprises a main shaft 16 on which the wind wheel is mounted, a

pair of pinions 17 and '18 secured on the shaft 16, a pair of gears 19 and 20 meshing with the pinions 17 and 18 respectively; a pair of pitmen 21 and .22 pivoted at their lower ends to the gears 19 and 20 respectively and operating between said gears, and across head 23 to which the upper ends of gears in-place, secured to the head 10 by means of bolts 31. This mounting of'the gears enables the pitmen 21 and 22 and the cross head 23 to, operate in the space be: tween the gears. The cross head 23 is mounted on vertical cross head guides 32 and 33, and one side of the cross headfisextended downwardly so that its lower end dips in the oil 34 in the oil reservoir on the lower portion of the stroke as shown in Fig. 3. i

The bearing sleeves 26 and 27 are mou'nted in a tubular portion 35 of the head 10.- For supplying oil to these bearing sleeves a notched ring 36 (Figs. 2 and 6) is provided, which rotates with the main shaft 16. In ordertomaintain this oilingring snugly over against the end 0 the bearing sleeve 27, a tapering collar 37 is provided, mounted on the main shaft 16; the oiling ring being provided with a corresponding inner-tapering surface at 38. These tapering surfaces 86 will cause the oiling ring to be maintained in snug engagement "with the end of the bearing sleeve 27, and will cause oil car'-.

ried up by the oiling ring to be supplied to this bearing sleeve. The oilwill be carried along the main shaft 16 by the rotation of.

the shaft to supply oil to the outer bearing sleeve 26. 4

In order to insure the return of the oil from the outer endof the shaft tothe ,95

reservoir, a floatable oil scraper .39 is provitled 1 (Figs. 2 and 7) having an inclined scraper portion 40, which shears the oil from the shaft, and causes it. to drip down into the passage 41, which returns it to the main oil reservoir. A 0011 compression spring 42 is provided for holding the oil scraper 39 silluily up against the lower side of the The oil level in the reservoir is ordinaril such that the 'lowerends of the pitmen wi dip therein, but if not, thegears 19 and 20,

the lower sides of which dip into the oil, I

* component of the pitman thrust has to .be carried by this oil scraper. J In order to drag the oil scraper down with the .cross head the scraper is provided with a pair of lugs and 46. located underneath the ears 47 and 48 on the cross head.

In order to conduct the oil Which is scraped from the cross head guide 32, to the pivotal connection 24 of the pitmen, the scraper is provided with an inclined oil passage 49, which conducts the oil to the oil hole 50. In order to provide some lubrication for the auxiliary cross head guide 33, an oil hole '51 leads from the pivotal connection 24.

The pull out construction for throwing the mill out of the gear. comprises a pull chain 52, running over the pulleys 53 and 54, and a rock arm 55, to which the chain 52 is connected at 56. This rock arm 55 is mounted on the vertical pivoted pin 57 on which the vane 12 also is pivotally mounted, and is provided with an abutment ortion 58 which engages the strut 59, which extends between and is secured to the vane members 60 and 61. This loose engagement between the rock arm 55 and the strut 59 enables the windmill to regulate itself in the wind by permitting pivotal movement of the head with respect to the vane without interference from the pull-out rock arrn.

In orderto provide a cushioning effect for the throwing 1n and-out of gear of the mill, a pivoted bufler member 62 is provided, having an abutment portion 63 for limiting the throwing in movement of the mill, and an other abutment portion 64, for limiting the throwing out movement of the mill. Ihis buffer or cushioning member 62 is pivotally mounted on] the same pin 57 on which the vane stem and throw-outarm are pivoted. In order to provide a connection between the buffer member'62 and the vane 12, which will yield in both directions, a pair of coil compression springs 65 and 66 are provided,

through which the connecting rod 67'extends. 'One end of this connecting rod is pivotally secured to the vane stem, and the other end extends through an opening in the lug 68 formed on the buifer member. The bufier springs are held in place on the connecting rod by means of nuts 69 and 70 threaded on the connecting rod. In order to throw the mill into gear when the pullthe mill into gear, the abutment portion 63 of the buffer member engages the side of the head 10, and the buffer spring 66 acts as a cushion to bring the further relative movement between the head and the vane stem to ,a stop.

When the mill is thrown out of gear by pulling down onthe chain 52, the abutment portion 64 of the butter member engages the side of the head 10, whereupon the relative motion between the head and vane stem is brought to a stop bythe cushioning spring 65 In order to hold the wind wheel against rotation when the mill is out of gear, the hub 73of the wind Wheel is provided with an internal annular braking surface at 74 with which cooperates an internal expanding brake band 75. A coil tension spring 76 (Fig. 8) tends to hold this brake band out of contact with the braking surface. The brake band is mounted on a bracket 77, secured to the tubular portion 35. of the head.

The brake band is forced outwardly into braking position when the mill is thrown out of gear by means of a bell-crank 78 pivotally mounted to swing about a vertical axis by means of a pin 79 secured to,,the under side of the tubular portion 35. This bell-crank is operated from the pull-out arm 55 by means of a link 80 pivotally connected at 81 to the bell-crank, and pivotally connected at 82 to an arm 83 formed integral with the pull-out arm 55.

While I have shown but one form of my invention,it is obvious that it may be embodied in other forms covered and defined by the appended claims. i1

Having thus described my invention, what I claim as new and esire to secure by Let ters Patent of the United States is:

1 In a windmill, the combination of a wind wheel, a driving shaft, a main frame having a vertical pivoted tubular axle, a lubricant containing chamber in said frame, bearing hubs rigidly connected to the inner sides of oil chamber, gear wheels mounted upon said hubs, the hubs having projecting shoulders to keep said gear wheel in place, pinions mounted upon the driving shaft for operating the gears, guide rods, a cross head working upon said guide rods, one side of which extends downwardly and dips into the lubricant upon its downward stroke, and pitmen connecting the cross head and gears for o erating the pump rod.

2; n a windmill, the combination of a main frame arranged to contain lubricant,-

a wind wheel, a wind wheel shaft, a pump rod, owertransmitting mechanism connecting t e wheel shaft with the pump rod including a cross head, guide rods for said cross head, the cross head being arranged to dip in the oil chamber on the downward stroke and carry -oil up on the guide rods,

' and an oil scraper slidably mounted on said guide rods and loosely connected to the cross head, said oil scraper having a surface adapted to shear the oil from the guide rods and a groove to lead the oil to other parts to be lubricated.

3. A windmill comprising a wind wheel, a pump rod, an oil reservoir, and transmission from said wheel to said rod, comprising a pair of spaced gears and vertically reciprocablecross head driven by said gears, said oil reservoir serving to maintain a supply ofoil between said gears, and said cross head being reciprocable in the space between said gears and extending downwardly to dip into said oil supply.

4.. A windmill construction comprising a wind wheel, a pump rod, an oil reservoir, vertical cross head guides, and transmission from said wheel to said pump rod, comprising a pair of spaced gears and a cross head mounted on said guides and driven by said gears, said oil reservoir serving to maintain a supply of oil between said gears, said cross head guides being located between said gears, and said cross head being reciprocable in the space between said gears and extending downwardly to dip into said oil supply.

5. A windmill construction comprising a wind wheel, a pump rod, an oil reservoir, and transmission from said wheel'to said pump rod, comprising a .pair of spaced gears, the lower portions of which operate in the oil in said reservoir and a cross head driven by said gears, said cross head being reciprocable in the space between said gears and extending downwardly to dip into said oil reservoir.

6. A windmill construction. comprising a wind wheel, a pump rod, an oil reservoir, and transmission from said wheel to said rod comprising a pair of spaced gears, a pair of pitmen operating between said gears and pivotally connected at one end with said gears respectively, a cross head to which the other ends of said pitmen are pivotally connected, said oil reservoir serving to maintain a supply of oil between said gears, and

said cross head being reciprocable in the space between said gears and extending downwardly to dip into said oil supply.

7. A windmill construction comprising a wind wheel, a pump rod, an oil reservoir, and transmission from said wheel to said rod, comprising a pair "of spaced gears, a pair of pitmen pivotally connected at one end with said gears respectively, and a cross head to which the other ends of said pitmen space between said gears and extending downwardly to dip into said oil supply.

8. A windmill construction comprising a wind wheel, a shaft on which said wind wheel is mounted, a pair of spaced pinions mounted on said shaft, a pump rod, a transmission from said pinions to said pump rod, comprising a pair of spaced gears meshing with said pinions respectively, and a cross head driven by said gears, and an oil reservoir serving to maintain a supply of oil between said gears and said cross head being reciprocable in the space between said gears, to dip into said oil supply.

9. A windmill construction comprising an oil reservoir, a vertical cross head guide, a

cross head, and an oil scraper actuated by said cross head and guided by said crosshead guide independently of said cross head.

10. A windmill construction comprising an oil reservoir, a vertical cross, head guide. a cross head, and an oil scraper actuated by said cross head and guided by said. cross head guide independently of said cross head, said oil scraper being provided with an oil passage for conducting the oil scraped from the cross head guide to a part to be lubricated.

11. A windmill construction comprising an oil reservoir, a vertical cross head guide, a cross head, a member pivotally connected with said cross head and an oil scraper actuated by said cross head and guided by said cross head guide independently of said cross head, said scraper being provided with a passage for conducting the oil scraped from said cross head guide to said pivotal connection.

12. windmill construction. comprising a wind wheel, a shaft on which said wheel is mounted, a bearing for said shaft, an oil voir, comprising a collar on said shaft tapering towards said bearing and a ring carried by said collar and engaging the tapering periphery thereof, whereby said ring is maintained in position against said bearing.

14. A windmill construction comprising a wind wheel, a horizontal shaft on which said wheel is mounted, a bearing for said shaft,

an oil reservoir and means for supplying on to said bearing from said reservoir, comprising a collar on said shaft tapering towards said bearing and a ring carried by said collar and engaging the tapering periphery thereof, whereby said ring is maintained in position against said bearing, said ring having an internal tapering surface engaging the tapering periphery of the collar.

15. A windmill construction comprising a wind wheel, a horizontal shaft on which said wheel is mounted, a bearing for said shaft, an oil reservoir and means for supplying oil to said bearing from said reservoir, comprising a collar on said shaft tapering towards said bearing and a ring-carried by said collar and engaging the tapering periphery thereof, whereby said ring is mamtained in position against said bearing, and means whereby said ring is caused to rotate with said collar.

16. In a windmill, the combination of a main frame having a reservoir to contain lubricant, a pump rod, a cross-head operating said pump rod, guides for said cross head, bearing hubs rigidly secured to the inner sides of said frame, gears journaled independently thereon, and .pitman connections between the gears and crosshead.

[1.7. In a windmill the combination of a wind-wheel, a driving shaft, a supporting frame having an oil chamber therein, bearing hubs rigidly fastened to the inner sides of said oil chamber, gears journaled independently upon said hubs, pinions rigidly mounted on the driving shaft for operating said gears, a crosshead for operating the pump rod and pitman connections between the gears and crosshead.

18. In a windmill the combination of a wind-wheel, a driving shaft, a supporting frame having an oil chamber therein, pinion's rigidly mountedon said driving shaft, bearing hubs fastened to the inner sides of said oil chamber and gears independently journaled thereon and driven by said pin"- ions.

19. A windmill construction comprising a wind wheel, a shaft on which said wheelis mounted, atubular member non-rotatable with said shaft through which said shaft extends, said wind wheel being provided with an internal brake drum, and an ex panding brake band mounted on said tubular member for engagement with said internal brake drum.

20. A windmill construction comprising a wind wheel, a head on which said wind wheel is mounted, said head being swivelled about a vertical axis, a vane pivotally mounted on said head to swing about a vertical axis with respect to said head, and buffer means acting between said head and vane comprising a buffer member movable with the vane to swing about a vertical axis and cooperating with the head at both extrenies of the swinging movement to limit the swinging movement, said bufi'er member having a yielding connection with said vane.

21. A windmill construction comprising a wind wheel, a head on which said wind wheel is mounted, said head being swivelled about a vertical axis, a vane pivotally mounted on said head to swing about a vertical axis with respect to said head, and bufier means acting between said head and vane comprising a buffer member movable with the vane to swing about a vertical axis and cooperating with the head at both extremes of the swinging movement to limit the swinging movement, said bufier member having a yielding connection with said vane, said yielding connection comprising apair of oppositely acting springs.

22. A windmill construction comprising a wind wheel, a head on which said wind wheel is mounted, said head being swivelled about a vertical axis, a vane pivotally mounted on said head to swing about a vertical axis with respect to said head, and buffer means acting between said head and vane comprising a buffer member movable with the vane to swing about a vertical axis and cooperating with the head at both extremes of the swinging movement to limit the swinging movement, said bufi'er member having a yielding connection with said vane, said yielding connection comprising abutment means on said buffer member, oppositely acting coil springs cooperating with said abutment means and a rod secured to said vane and extending through saidcoil springs. I

In Witness whereof, I have hereunto subscribed my name.

" H. M. LOEBER. 

